I have looked all over the net and I have found it only on rg-adguard and the internet archive with day-long download times, however I would like to download the whole iso in less than an hour. Heidoc.net windows ISO downloader freezes when I select win10 so this can't be used neither.

Where could I do that?

Also, where could I verify the iso so that I can see whether it is modified or not as the official microsoft website doesn't show the hash anymore?